Fix documentation of of chr's equivalent directive ZEB-672

[idzebra-moved-to-github.git] / isamc / isamc-p.h

diff --git a/isamc/isamc-p.h b/isamc/isamc-p.h
index 4abbc72..67a80ba 100644 (file)
--- a/isamc/isamc-p.h
+++ b/isamc/isamc-p.h
@@ -1,62 +1,112 @@
-/*
- * Copyright (c) 1995-1996, Index Data.
- * See the file LICENSE for details.
- * Sebastian Hammer, Adam Dickmeiss
- *
- * $Log: isamc-p.h,v $
- * Revision 1.2  1996-11-01 08:59:13  adam
- * First version of isc_merge that supports update/delete.
- *
- * Revision 1.1  1996/10/29 13:40:47  adam
- * First work.
- *
- */
+/* This file is part of the Zebra server.
+   Copyright (C) Index Data
+
+Zebra is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 2, or (at your option) any later
+version.
+
+Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+*/
 
-#include <bfile.h>
-#include <isamc.h>
+
+
+#include <idzebra/bfile.h>
+#include <idzebra/isamc.h>
+
+YAZ_BEGIN_CDECL
 
 typedef struct {
-    int lastblock;
-    int freelist;
+    zint lastblock;
+    zint freelist;
 } ISAMC_head;
 
+typedef unsigned ISAMC_BLOCK_SIZE;
+
 typedef struct ISAMC_file_s {
     ISAMC_head head;
     BFile bf;
     int head_is_dirty;
-    
+
     int no_writes;
     int no_reads;
     int no_skip_writes;
     int no_allocated;
     int no_released;
     int no_remap;
+
+    int no_forward;
+    int no_backward;
+    zint sum_forward;
+    zint sum_backward;
+    int no_next;
+    int no_prev;
+
+    char *alloc_buf;
+    int alloc_entries_num;
+    int alloc_entries_max;
+
+    int fc_max;
+    zint *fc_list;
 } *ISAMC_file;
 
 struct ISAMC_s {
     int no_files;
     int max_cat;
     char *merge_buf;
-    ISAMC_M method;
+    ISAMC_M *method;
     ISAMC_file files;
-}; 
+};
 
 struct ISAMC_PP_s {
     char *buf;
-    int offset;
-    int size;
+    ISAMC_BLOCK_SIZE offset;
+    ISAMC_BLOCK_SIZE size;
     int cat;
-    int pos;
-    int next;
+    zint pos;
+    zint next;
     ISAMC is;
     void *decodeClientData;
     int deleteFlag;
+    zint numKeys;
 };
 
-#define ISAMC_BLOCK_OFFSET (sizeof(int)+sizeof(int)) 
+/*
+  first block consists of
+      next pointer : zint
+      size         : ISAMC_BLOCK_SIZE (int)
+      numkeys      : zint
+      data
+  other blocks consists of
+      next pointer : zint
+      size :         ISAMC_BLOCK_SIZE (int)
+      data
+*/
+#define ISAMC_BLOCK_OFFSET_1 (sizeof(zint)+sizeof(ISAMC_BLOCK_SIZE)+sizeof(zint))
+#define ISAMC_BLOCK_OFFSET_N (sizeof(zint)+sizeof(ISAMC_BLOCK_SIZE))
+
+zint isamc_alloc_block (ISAMC is, int cat);
+void isamc_release_block (ISAMC is, int cat, zint pos);
+int isamc_read_block (ISAMC is, int cat, zint pos, char *dst);
+int isamc_write_block (ISAMC is, int cat, zint pos, char *src);
+
+YAZ_END_CDECL
+
 
-int isc_alloc_block (ISAMC is, int cat);
-void isc_release_block (ISAMC is, int cat, int pos);
-int isc_write_dblock (ISAMC is, int cat, int pos, char *src,
-                      int nextpos, int offset);
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * c-file-style: "Stroustrup"
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */